The “Sonata Cathedral Dual Time” watch is an amazing creation with a mechanical alarm that has a crisp & beautiful chime/ring. This watch features: A grey dial spectacularly finished with a partial silvered linear “Cotes de Geneve” design. Large Skeleton Hands for Hours & Minutes which allows for a clear & unobstructed view of the dial. GMT/Dual Time Zone hour hand Subdial at 6 o’clock. Buttons on either side of the case adjust the time-zone by one-hour increments either way. Alarm time indicator located at the 2 o’clock position. The subdial at 10 o’clock indicates a countdown to when the alarm will chime the next time – the alarm will chime once in 24 hours. On/Off indicator at the 9 o’clock position – controlled by the button in the center of the left crown. While the alarm is ringing you can see the piston at work – located at the 8 o’clock position & held in place with a blue bridge. The left crown adjusts the time & date. Serial Number engraved on the bezel of the watch at the 6 o’clock position. Caliber UN-67 with 109 jewels, beats at 28,800 vph & an approximate power reserve of 42 hours.